43542229 has 8 divisors (see below), whose sum is σ = 44807168. Its totient is φ = 42282000.

The previous prime is 43542221. The next prime is 43542251. The reversal of 43542229 is 92224534.

43542229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43542229 - 2³ = 43542221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43542229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43542221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27004 + ... + 28570.

It is an arithmetic number, because the mean of its divisors is an integer number (5600896).

Almost surely, 2^43542229 is an apocalyptic number.

It is an amenable number.

43542229 is a deficient number, since it is larger than the sum of its proper divisors (1264939).

43542229 is a wasteful number, since it uses less digits than its factorization.

43542229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2355.

The product of its digits is 17280, while the sum is 31.

The square root of 43542229 is about 6598.6535747833. The cubic root of 43542229 is about 351.8062515244.

The spelling of 43542229 in words is "forty-three million, five hundred forty-two thousand, two hundred twenty-nine".